Figure 1
From: Optokinetic stimulation induces vertical vergence, possibly through a non-visual pathway
The visual stimulation covered 50° of subjects’ field of vision, and consisted of 38 white lines, 0.42 cm wide and 3.25 cm long (visual angle, 0.93°) standing at an angle of 45°, rotating around a central fixation point of 0.32 cm in diameter. The image rotated 28° during the active stimulation phase.
